High Accuracy I2C Tiny DS3231Real Time Clock Module with Rechargeable Battery

Description High Accuracy Tiny I2C DS3231 Real Time Clock Module with built-in 10 bit temperature sensor having resolution of 0.25C. The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3231 is available in commercial and industrial temperature ranges, and is offered in a 16-pin, 300-mil SO package. Applications/Uses Global Positioning Systems (GPS) Servers Telematics Utility Power Meters Real-time Clock for Raspberry Pi, Arduino and other embedded boards Features DS3231 based RTC with on board rechargeable Battery Highly Accurate RTC Completely Manages All Timekeeping Functions Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year, with Leap-Year Compensation Valid Up to 2100 Digital Temp Sensor Output Register for Aging Trim Two Time-of-Day Alarms Programmable Square-Wave Output Signal Battery-Backup Input for Continuous Timekeeping Low Power Operation Extends Battery-Backup Run Time 3.3V Operation Technical Specifications I2C interface : Fast (400kHz) I2C Interface Digital Temp Sensor Output: 10 bit, ±3°C Accuracy and 0.25C resolution Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Accuracy ±2ppm from 0°C to 40°C Accuracy ±3.5ppm from -40°C to 85°C Voltage – Supply Battery: 2.2 V ~ 5.5 V (for RTC) Operating Temperature Ranges: Commercial (0°C to 70°C) and Industrial (-40°C to 85°C) Size: 14.5mm (length) * 13.5mm (W) * 12.5mm (height) Weight:2.1g (including Battery) Pinouts -: GND / 0V NC: No connection C: I2C CLOCK D: I2C SDA : VCC Related Documents DS3231 RTC datasheet Comparison between DS3231 vs DS1307 See here Arduino Library Package Includes 1x High Accuracy I2C Tiny DS3231 Real Time Clock Module